grade measures of pubertal development, depressive symptoms, gang involvement, or deviant friends (for boys), although they had lower rates of school adjustment. Interestingly, youth in Class 3, who engaged in early tobacco and substance use but did not have elevated risk for pregnancy or STDs, did not differ significantly from youth in the low risk group on any of the kindergarten characteristics (except for inattention for boys), but showed higher levels than the low risk group on all of the eighth grade measures (except for deviant friends for boys).